During the recent Activision Blizzard earnings call, Blizzard Entertainment CEO Mike Morhaime mentioned that World of Warcraft subscriber levels had fallen to 11.4 million this March from its former peak of 12 million. In response, he said that Blizzard is currently looking at ways to reduce downtime between expansions.
The dip in subscription numbers shouldn't come as too much of a surprise with the March launch of Rift and the absence of a major WoW patch at that time. It's safe to say that the playerbase will continue to fluxuate, especially if Blizzard is able to churn out more content.
What do you think? You can discuss the topic in this thread in our WoW general forum.